* {
    margin: 0px;
    padding: 0px;
}

ul {
    list-style: none;
}

.clearFix::after {
    display: block;
    content: '';
    clear: both;
}

.outer-tile {
    width: 1440px;
    background: #ffffff;
    box-shadow: 0px 0px 1px rgba(0, 0, 0, 0.3);
}

header {
    box-sizing: border-box;
    width: 1225px;
    height: 50px;
    margin: 0 auto;
}

.left {
    float: left;
}

.left>div {
    float: left;
}

.left .img {
    width: 80px;
    height: 50px;
    background: url(./images/weibo-header.png) no-repeat center;
    background-size: contain;
}

.left .input-box {
    position: relative;
    width: 470px;
    height: 30px;
    margin-top: 11px;
    margin-left: 30px;
    border: 1px solid #CCCCCC;
    box-sizing: border-box;
    background-color: #F2F2F2;

}

.left .input-box input {
    box-sizing: border-box;
    width: 100%;
    height: 28px;
    border: none;
    background-color: transparent;
    font-size: 12px;
    color: #808080;
    padding-left: 10px;
    padding-right: 35px;
    line-height: 29px;
    outline: 0;
}

.left .input-box span {
    position: absolute;
    width: 16px;
    height: 28px;
    line-height: 28px;
    top: 0px;
    right: 15px;
    background: url(./images/search.png) no-repeat center;
    background-size: contain;
}

.right {
    float: right;
    line-height: 50px;
}

.right ul {
    float: left;
}

.right .nav {
    margin-right: 30px;
}

.right .nav li {
    position: relative;
    float: left;
    margin-right: 15px;
    font-size: 12px;
    line-height: 50px;
    padding-left: 22px;
}

.right .nav li:last-child {
    margin-right: 0px;
}

.right .nav span {
    position: absolute;
    top: 16px;
    left: 0px;
    width: 17px;
    height: 17px;
}

.right .nav .first-page {
    background: url(./images/first-page.png) no-repeat center;
    background-size: contain;
}

.right .nav .video {
    background: url(./images/video.png) no-repeat center;
    background-size: contain;
}

.right .nav .find {
    background: url(./images/find.png) no-repeat center;
    background-size: contain;
}

.right .nav .game {
    background: url(./images/game.png) no-repeat center;
    background-size: contain;
}

.right .regist-login li {
    float: left;
    font-size: 12px;
}

.right .regist-login li:nth-child(2) {
    margin: 0 10px;
    color: #D9D9D9;
}